Readiness Score
Oura's daily verdict on your capacity for stress
Plain English
Readiness Score is Oura's daily composite metric for how prepared your body is to handle physical and mental stress, scored from 0 to 100. It pulls together HRV balance, resting heart rate, body temperature, sleep score, and activity balance into a single number and color. It is the closest equivalent to WHOOP's Recovery Score, though the algorithms and inputs differ enough that scores are not numerically comparable between platforms.
The Mechanism
Oura's Readiness Score is calculated from seven contributing factors, each scored individually and weighted into the composite. HRV balance, the most heavily weighted contributor, compares your recent five-night HRV average to your 30-day baseline; a drop below baseline pushes the score down sharply. Resting heart rate is assessed the same way, comparing recent nights to your personal baseline. Body temperature deviation uses Oura's skin temperature sensor at the finger to flag overnight elevations from illness, alcohol, training load, or hormonal cycles.
The sleep score feeds directly into readiness, incorporating total sleep duration, sleep efficiency, time in each stage, and consistency of sleep timing. Recovery index measures how early in the night your resting heart rate reached its lowest point: an index reaching the low point in the first half of the night indicates strong early recovery; an index that does not reach its low point until the final hours suggests the body was still processing stress late in the night, which is the typical pattern after alcohol consumption.
Activity balance, the final major factor, tracks whether your recent activity level has been appropriate for your recent recovery capacity: consistently training hard without adequate rest days pushes this factor negative. Oura scores the composite on a 0 to 100 scale with 85 and above typically green, 70 to 84 yellow, and below 70 red. The thresholds adjust slightly based on your personal norm.
Why It Matters
Readiness measures your body's capacity to handle stress, not how rested you feel.
Readiness Score answers the question most wearable users actually want answered: should I push today, maintain, or back off? Used as a trend signal rather than a daily grade, it surfaces patterns that are invisible in any single night of data. A week of low readiness following consistent hard training is a different story than a week of low readiness with no change in training, which typically points to lifestyle stress, illness onset, or chronic under-recovery. The Oura readiness system is particularly effective at early illness detection: a body temperature elevation alongside HRV suppression often appears 24 to 48 hours before symptoms.
Common Misconception
A high Readiness Score does not mean you should train hard. It means conditions are favorable for high effort if your training plan calls for it. Many Oura users treat the score as a directive rather than an input, which leads to inconsistent training and chasing green days. The score should inform your training decision, not replace the plan you designed during your most objective, rested moment.
What a Healthy Range Looks Like
Low
0–69
Body is under load; prioritize sleep, reduce training intensity, and investigate which contributors are dragging the score
Pay attention
70–84
Moderate readiness; train as planned but avoid adding volume or intensity beyond what is scheduled
Optimal
85–100
Strong readiness; conditions favorable for high-effort training, competition, or demanding cognitive work
Track your 7-day average rather than daily score. Consecutive days below 75 warrant investigation of sleep, alcohol, training load, and life stress. Persistent scores below 70 despite apparent rest are worth discussing with a clinician to rule out illness or hormonal disruption.
Signs It Is Disrupted
- HRV balance consistently negative despite normal training load and adequate sleep duration
- Readiness failing to recover to green after a full rest day or planned recovery week
- Body temperature contribution consistently flagged, pointing to persistent physiological stress
- Recovery index staying low (late trough), often indicating alcohol consumption, stress, or illness
- Readiness and subjective wellbeing consistently disagreeing, which can indicate chronic adaptation to under-recovery
How to Improve It
Which Devices Track It
Oura Ring
Readiness Score is an Oura-proprietary metric, calculated nightly and available each morning in the app; it is the central daily metric of the Oura system, informed by all seven contributing factors including the unique finger-based temperature sensor.
WHOOP
WHOOP calls its equivalent metric Recovery Score; both draw on HRV, resting heart rate, sleep, and temperature, but the algorithms, input weighting, and display scales differ enough that scores are not numerically comparable.
Garmin
Garmin's Body Battery shares conceptual intent with Readiness Score but uses a different calculation model and does not use a skin temperature input on most devices; values run on a similar 0 to 100 scale but are not equivalent.
3 Things to Remember
Readiness Score combines seven Oura-measured inputs (HRV balance, resting heart rate, body temperature, sleep score, recovery index, activity balance, and previous day activity) into a single daily capacity signal.
The score is most meaningful as a 7-day trend: a week of sub-75 readiness with no change in training points to lifestyle stress, early illness, or structural under-recovery that a single rest day will not resolve.
Use Readiness Score as a training decision input alongside your planned schedule, not as a directive; the goal is to use the signal to avoid accumulating physiological debt, not to permanently chase green.
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